[INFO] fetching crate microchassis 0.0.6...
[INFO] testing microchassis-0.0.6 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate microchassis 0.0.6 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate microchassis 0.0.6
[INFO] finished tweaking crates.io crate microchassis 0.0.6
[INFO] tweaked toml for crates.io crate microchassis 0.0.6 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate microchassis 0.0.6 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate microchassis 0.0.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e910ed19c8740c9f03d3faf8a8e6792d955ddac4382dded2e00ef1b84671fdd
[INFO] running `Command { std: "docker" "start" "-a" "4e910ed19c8740c9f03d3faf8a8e6792d955ddac4382dded2e00ef1b84671fdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e910ed19c8740c9f03d3faf8a8e6792d955ddac4382dded2e00ef1b84671fdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e910ed19c8740c9f03d3faf8a8e6792d955ddac4382dded2e00ef1b84671fdd", kill_on_drop: false }`
[INFO] [stdout] 4e910ed19c8740c9f03d3faf8a8e6792d955ddac4382dded2e00ef1b84671fdd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8efc9857a3e7c8411dbfbf55c957a8c95a202a3298fe7883fea5cce91e9c087b
[INFO] running `Command { std: "docker" "start" "-a" "8efc9857a3e7c8411dbfbf55c957a8c95a202a3298fe7883fea5cce91e9c087b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling rustix v0.38.37
[INFO] [stderr]    Compiling thiserror v1.0.64
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]    Compiling gimli v0.31.0
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling bytes v1.7.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.24
[INFO] [stderr]    Compiling miniz_oxide v0.8.0
[INFO] [stderr]    Compiling cc v1.1.21
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling fastrand v2.1.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling object v0.36.4
[INFO] [stderr]    Compiling http v1.1.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling tikv-jemalloc-sys v0.6.0+5.3.0-1-ge13ca993e8ccb9ba9847cc330696e02839f328f7
[INFO] [stderr]    Compiling addr2line v0.24.1
[INFO] [stderr]    Compiling tempfile v3.12.0
[INFO] [stderr]    Compiling backtrace v0.3.74
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling tikv-jemalloc-ctl v0.6.0
[INFO] [stderr]    Compiling tikv-jemallocator v0.6.0
[INFO] [stderr]    Compiling microchassis v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `Vec<u8>` will be dropped
[INFO] [stdout]    --> src/profiling/mallctl.rs:163:68
[INFO] [stdout]     |
[INFO] [stdout] 163 |             Some(s) => ffi::CString::new(s)?.into_bytes_with_nul().as_ptr(),
[INFO] [stdout]     |                        ------------------------------------------- ^^^^^^ this pointer will immediately be invalid
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        this `Vec<u8>` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]     |
[INFO] [stdout]     = note: pointers do not have a lifetime; when calling `as_ptr` the `Vec<u8>` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]     = help: you must make sure that the variable you bind the `Vec<u8>` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `Vec<u8>` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout]     = note: `#[warn(dangling_pointers_from_temporaries)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 44s
[INFO] running `Command { std: "docker" "inspect" "8efc9857a3e7c8411dbfbf55c957a8c95a202a3298fe7883fea5cce91e9c087b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8efc9857a3e7c8411dbfbf55c957a8c95a202a3298fe7883fea5cce91e9c087b", kill_on_drop: false }`
[INFO] [stdout] 8efc9857a3e7c8411dbfbf55c957a8c95a202a3298fe7883fea5cce91e9c087b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5de60f3951f2d5d542537c14ee27858bdbc8ecb25e5a2f2fb48d81fd7ffad212
[INFO] running `Command { std: "docker" "start" "-a" "5de60f3951f2d5d542537c14ee27858bdbc8ecb25e5a2f2fb48d81fd7ffad212", kill_on_drop: false }`
[INFO] [stderr]    Compiling microchassis v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `Vec<u8>` will be dropped
[INFO] [stdout]    --> src/profiling/mallctl.rs:163:68
[INFO] [stdout]     |
[INFO] [stdout] 163 |             Some(s) => ffi::CString::new(s)?.into_bytes_with_nul().as_ptr(),
[INFO] [stdout]     |                        ------------------------------------------- ^^^^^^ this pointer will immediately be invalid
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        this `Vec<u8>` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]     |
[INFO] [stdout]     = note: pointers do not have a lifetime; when calling `as_ptr` the `Vec<u8>` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]     = help: you must make sure that the variable you bind the `Vec<u8>` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `Vec<u8>` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout]     = note: `#[warn(dangling_pointers_from_temporaries)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `Vec<u8>` will be dropped
[INFO] [stdout]    --> src/profiling/mallctl.rs:163:68
[INFO] [stdout]     |
[INFO] [stdout] 163 |             Some(s) => ffi::CString::new(s)?.into_bytes_with_nul().as_ptr(),
[INFO] [stdout]     |                        ------------------------------------------- ^^^^^^ this pointer will immediately be invalid
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        this `Vec<u8>` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]     |
[INFO] [stdout]     = note: pointers do not have a lifetime; when calling `as_ptr` the `Vec<u8>` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]     = help: you must make sure that the variable you bind the `Vec<u8>` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `Vec<u8>` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout]     = note: `#[warn(dangling_pointers_from_temporaries)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "5de60f3951f2d5d542537c14ee27858bdbc8ecb25e5a2f2fb48d81fd7ffad212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5de60f3951f2d5d542537c14ee27858bdbc8ecb25e5a2f2fb48d81fd7ffad212", kill_on_drop: false }`
[INFO] [stdout] 5de60f3951f2d5d542537c14ee27858bdbc8ecb25e5a2f2fb48d81fd7ffad212
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 58b03be534a2ec8d02cf11ff2ed983c16b554a44ef83321a02d62125a1a6c260
[INFO] running `Command { std: "docker" "start" "-a" "58b03be534a2ec8d02cf11ff2ed983c16b554a44ef83321a02d62125a1a6c260", kill_on_drop: false }`
[INFO] [stderr] warning: a dangling pointer will be produced because the temporary `Vec<u8>` will be dropped
[INFO] [stderr]    --> src/profiling/mallctl.rs:163:68
[INFO] [stderr]     |
[INFO] [stderr] 163 |             Some(s) => ffi::CString::new(s)?.into_bytes_with_nul().as_ptr(),
[INFO] [stderr]     |                        ------------------------------------------- ^^^^^^ this pointer will immediately be invalid
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        this `Vec<u8>` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stderr]     |
[INFO] [stderr]     = note: pointers do not have a lifetime; when calling `as_ptr` the `Vec<u8>` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stderr]     = help: you must make sure that the variable you bind the `Vec<u8>` to lives at least as long as the pointer returned by the call to `as_ptr`
[INFO] [stderr]     = help: in particular, if this pointer is returned from the current function, binding the `Vec<u8>` inside the function will not suffice
[INFO] [stderr]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stderr]     = note: `#[warn(dangling_pointers_from_temporaries)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `microchassis` (lib) generated 1 warning
[INFO] [stderr] warning: `microchassis` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/microchassis-1b0d7aa2c5ca679a)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test profiling::mallctl::tests::test_prof_active ... ignored
[INFO] [stdout] test profiling::mallctl::tests::test_prof_reset ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests microchassis
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "58b03be534a2ec8d02cf11ff2ed983c16b554a44ef83321a02d62125a1a6c260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58b03be534a2ec8d02cf11ff2ed983c16b554a44ef83321a02d62125a1a6c260", kill_on_drop: false }`
[INFO] [stdout] 58b03be534a2ec8d02cf11ff2ed983c16b554a44ef83321a02d62125a1a6c260
